The first time, I was passing another vehicle and pressed the accelerator and the engine began to race and speed up. The pedal was stuck down. It was not caught on the rug and when I tried lifting with my foot it was not stuck down. The second time, the accelerator was pushed down, and the engine began to speed up and race. I had to put the car in neutral but the engine continued to race. I had to keep my food on the brake but the car as before continued to accelerate.. I had the dealer in renton look at it but they seem not to be able to access the problem.

- Kent, WA, USA

The contact owns a 2009 Hyundai Azera. The contact stated that the vehicle experienced a sudden increase in engine rpms and lunged forward abnormally, although the brakes were engaged. The contact mentioned that the only way he could stop the vehicle was by shifting to park and turning the ignition off. The vehicle was taken to the dealer who was unable to diagnose the problem. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 14,900 and the current mileage was 14,985.

- Boynton Beach, FL, USA

The contact owns a 2009 Hyundai Azera. While driving 55 mph to approach the interstate, the contact noticed that the vehicle would not accelerate; the speed decreased and would not move faster than 20 mph, the vehicle was taken to an authorized dealer where the throttle position sensor was replaced under warranty. The manufacturer had not been notified. The failure mileage was approximately 20,000. Updated 01/12/11 the throttle position sensor replaced. Updated 02/28/11

- Warren, OH, USA

The contact owns a 2009 Hyundai Azera. The contact was braking from 5 mph and approaching a stop when the vehicle abnormally accelerated. The contact was able to stop the vehicle by abruptly applying the brakes. The dealer diagnose was unable to duplicate the failure and the vehicle was not repaired. The failure mileage was 45,050 and the current mileage was 46,085.

- Columbus , NJ, USA

My daughter was driving on highway at about 60 mph with my wife and grandson when she lost accelerator function on her Hyundai Azera (2009 model). I am very concerned that this is a safety hazard. Is this a common problem and what can be done that it does not occur again" the dealer stated that the throttle sensor failed and shutdown the system. I am still skeptical that the could have caused a very accident and loss of life and property. Is it safe for her to drive this car"

- Irving, TX, USA